桂中坳陷中泥盆统罗富组富有机质泥页岩特征及意义

张子亚; 魏家琦; 石砥石; 覃英伦; 赵应权; 庞春雨; 刘洋

doi:10.11781/sysydz201901016

桂中坳陷中泥盆统罗富组富有机质泥页岩特征及意义

doi: 10.11781/sysydz201901016

1. 中国地质调查局油气资源调查中心, 北京 100083;
2. 中国地质调查局非常规油气地质重点实验室, 北京 100029;
3. 成都理工大学沉积地质研究院, 成都 610059

基金项目:

国家科技重大专项“页岩气资源评价方法与勘查技术攻关”（2016ZX05034）和中国地质调查局二级项目“滇黔桂地区上古生界海相页岩气基础地质调查项目”（121201021000150011）联合资助。

详细信息

作者简介:
张子亚(1990-),男,硕士研究生,从事页岩油气调查与选区评价工作。E-mail:zyzhang3327@163.com。

中图分类号: TE132.2
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- 被引次数: 0
出版历程
- 收稿日期: 2018-09-19
- 修回日期: 2018-11-08
- 刊出日期: 2019-01-28

Shale gas characteristics of organic-rich shale in Luofu Formation in Guizhong Depression

1. Oil & Gas Survey Center, China Geological Survey, Beijing 100083, China;
2. Key Laboratory of Non-conventional Oil and Gas Geology, China Geological Survey, Beijing 100029, China;
3. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu, Sichuan 610059, China

摘要

摘要: 通过全岩X衍射、黏土矿物X衍射、有机地球化学特征分析，研究桂中坳陷中泥盆统罗富组富有机质泥页岩特征。该泥页岩主要发育于台盆环境，岩性主要为黑色泥页岩、碳质页岩、硅质页岩和硅质泥页岩；鹿寨南部有机碳含量最高超过2.55%，合山-上林一线西北部最高超过3.0%；有机质类型为Ⅰ-Ⅱ₁型为主的混合型，生烃潜力较大，热演化程度高，具备页岩气藏发育的良好地质条件。页岩气富集因素分析表明，南丹-天峨一线与合山附近区域页岩气聚集条件较优越，是桂中坳陷中泥盆统罗富组页岩气勘探开发的有利区域。
- 泥页岩特征 /
- 聚集条件 /
- 页岩气 /
- 罗富组 /
- 中泥盆统 /
- 桂中坳陷
Abstract: The characteristics of organic-rich shale in the Middle Devonian Luofu Formation in the Guizhong Depressionwere studied using whole rock and clay mineral X-ray diffraction, and organic geochemical analyses. The shale was deposited as a black mud shale, carbonaceous shale, siliceous shale and siliceous mud shale. The organic carbon content in the southern Luzhai is higher than 2.55%, and the highest value in the northwest of Heshan-Shanglin is above 3.0%. The organic matter is mainly mixed types I and Ⅱ₁, which showed a great hydrocarbon generation potential and a high thermal evolution degree. The analysis of shale gas enrichment factors indicated that the regions close to Nandan-Tian'e and Heshan were favorable for shale gas accumulation, which were exploration targets in the Middle Devonian Luofu Formation in the Guizhong Depression.
- shale characteristics /
- accumulation condition /
- shale gas /
- Luofu Formation /
- Middle Devonian /
- Guizhong Depression

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